Using Ghidra for static analysis, radare2 for dynamic analsysis, and Frida for key brute forcing.

https://bannsecurity.com/index.php/home/10-ctf-writeups/54-harekaze-2019-admin-s-product-key

Original writeup (https://bannsecurity.com/index.php/home/10-ctf-writeups/54-harekaze-2019-admin-s-product-key).